1ef8e5c6dc1a1cff1c321c41c3658171957726f334e989281af1916e2b4b1707

General

Target

NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Size

310KB
MD5

ac31b3fb32daf878d07982b5ca8e4b20
SHA1

eecada0e6aa8ad9332ef9a2d9207f5fee0847071
SHA256

1ef8e5c6dc1a1cff1c321c41c3658171957726f334e989281af1916e2b4b1707
SHA512

320b4b1035de51e90fb8e430d5cafdc21cede5d3ccebb9c18dbe262940f90c9c81d1eda632c51da6519586fb2e6aefb21a10af55124365db75ae65ae73e64bf0
SSDEEP

6144:m7GfBcQhadAdQNLSNoSMuAfo3ySJ/xBSsKtB/H0CV1I4tiAyr:m7GfBcQodAdQQNoSMjybQPpH0d4kvr

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4460-0-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral2/memory/4460-2-0x0000000000400000-0x00000000004F1000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000006f57d72d100054656d7000003a0009000400efbe57575c7a6f57d72d2e000000b1e1010000000100000000000000000000000000000033817300540065006d007000000014000000	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1"	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000057575c7a120041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe57575c7a6f57d92d2e0000009de1010000000100000000000000000000000000000079e9e7004100700070004400610074006100000042000000	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000005757757d10004c6f63616c003c0009000400efbe57575c7a6f57d92d2e000000b0e101000000010000000000000000000000000000007b16cd004c006f00630061006c00000014000000	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4460	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 440	4460	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe	84
PID 4460 wrote to memory of 440	4460	NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe	84

C:\Users\Admin\AppData\Local\Temp\NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.ac31b3fb32daf878d07982b5ca8e4b20.exe"
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:440

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4460-0-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/4460-1-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/4460-2-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/4460-4-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download

Analysis

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